9880040

素因数分解:

$2^3\times 5^1\times {\mathrm{247001}}^1$

素因数の和:247012

約数の個数: 16

約数和(自身を含む): 22230180

約数和(自身を除く): 12350140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 247001, 494002, 988004, 1235005, 1976008, 2470010, 4940020, 9880040]

約数ペア:

[(1, 9880040), (2, 4940020), (4, 2470010), (5, 1976008), (8, 1235005), (10, 988004), (20, 494002), (40, 247001)]